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Carrier Gas furnace 58SU*B100M21**20

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Carrier Carrier AHRI Furnace - Comfort 80 Ultra-Low NOx Gas Furnace Gas furnace Repair, maintenance, and replacement planning
Carrier 58SU*B100M21**20 product image

Technical Specifications

Product Specs

  • AHRI unit role: Furnace
  • AHRI model/pattern: 58SU*B100M21**20
  • AHRI records represented: 133
  • AHRI equipment type: Central HP
  • AHRI tonnage: 2.933333333333333
  • AHRI refrigerant: R-454B
  • Verified catalog model: 58SU*B100M21**20
  • Verified product family: Comfort 80 Ultra-Low NOx Gas Furnace
  • Verified catalog brand: Carrier
  • Verified model family: 58SU0
  • Verified catalog model pattern: 58SU0B100M21--20
  • AHRI model/pattern: 58SU*B100M21**20
  • Product family: Comfort 80 Ultra-Low NOx Gas Furnace
  • AFUE efficiency: 80%
  • Combustion: induced-combustion gas furnace
  • NOx rating: ultra-low NOx, 14 ng/J compliant family
  • Furnace input capacity: 100,000 BTU/h input
  • Cabinet width code: 21 in.
  • AHRI airflow/output code: 20
  • Application: matched indoor furnace for split-system air conditioner or heat pump combinations
  • Official product page: https://www.carrier.com/us/en/residential/furnaces/58su0/
  • Product data sheet: https://www.shareddocs.com/hvac/docs/1010/Public/0D/01-858-684-01.pdf

Useful troubleshooting details

  • Confirm the installed model and serial number, matched indoor or outdoor equipment, voltage, refrigerant, controls, and AHRI certificate before service or replacement planning.
  • Use the linked AHRI certificates to verify matched-system combinations, rebate conversations, and equipment eligibility before quoting replacement work.
  • Collect photos of the nameplate, equipment access, recent fault history, and comfort symptoms before dispatch or proposal planning.

Certification match

AHRI certificates

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Eligible Central HP <5.4 tons

AHRI 217382198

AHRI 217382198 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ36AA3+TIC2025-0016 and indoor unit CSAH*4212AM*.
Eligible Central HP <5.4 tons

AHRI 217382292

AHRI 217382292 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ36AA3+TIC2025-0016 and indoor unit CSAH*3612AM*.
Eligible Central HP <5.4 tons

AHRI 217382432

AHRI 217382432 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ36AA3+TIC2025-0016 and indoor unit CAA**4321AM*.
Eligible Central HP <5.4 tons

AHRI 217382507

AHRI 217382507 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ36AA3+TIC2025-0016 and indoor unit CAA**4221AM*.
Eligible Central HP <5.4 tons

AHRI 217382578

AHRI 217382578 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ36AA3+TIC2025-0016 and indoor unit CAA**3721AM*.
Eligible Central HP <5.4 tons

AHRI 217382795

AHRI 217382795 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ30AA3+TIC2025-0016 and indoor unit CSAH*4212AM*.
Eligible Central HP <5.4 tons

AHRI 217382970

AHRI 217382970 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ30AA3+TIC2025-0016 and indoor unit CSAH*3612AM*.
Eligible Central HP <5.4 tons

AHRI 217383262

AHRI 217383262 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ30AA3+TIC2025-0016 and indoor unit CAA**4321AM*.
Eligible Central HP <5.4 tons

AHRI 217383382

AHRI 217383382 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ30AA3+TIC2025-0016 and indoor unit CAA**4221AM*.
Eligible Central HP <5.4 tons

AHRI 217383494

AHRI 217383494 identifies a Mass Save qualified Central HP <5.4 tons from CARRIER with outdoor unit 37MUHAQ30AA3+TIC2025-0016 and indoor unit CAA**3721AM*.
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Service planning

How GreenFlow handles 58SU*B100M21**20 requests

1

Identify the equipment

Confirm the model or series name, serial number if available, photos, and whether the unit is roof, exterior, basement, or mechanical-room equipment.

2

Describe the service issue

Share no heat, no cooling, weak airflow, error codes, alarms, leaks, noise, control problems, or comfort complaints.

3

Review access and history

Include access notes, tenant or business-hour constraints, filter status, recent repairs, and maintenance records when available.

4

Plan the next step

GreenFlow can route the request for diagnostics, repair planning, maintenance, replacement scope, or related system upgrades.

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Melissa S.

The repair person came quickly and was super efficient and polite, and showed me what to do next time. He gave my dog a quick pay and was off again.

Dev W.

I had a breakdown of my cooling system and Hanna at Green Flow responded to my request right away. They scheduled me same day. The team at Green Flow was easy to communicate with over phone and text. They kept me updated on delays on arrival of the...

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Jack B.

Andrey always does a great job.

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